Catawiki Opportunity Sniper

Actor Description

This Apify Actor is an advanced tool for the comprehensive scraping and monitoring of all information returned by the Catawiki platform. The software does not only identify buying opportunities but also extracts and saves every available metadata field for the lots viewed into the dataset, allowing for deep catalog analysis.

The algorithm analyzes lots at a specific filtered URL, evaluates current bids and remaining time, and can send an email notification via the Resend service if opportunities matching the user's price and deadline criteria are identified.

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Core Functionality

The algorithm performs the following steps:

• Full Scraping Extraction: Navigates through result pages and extracts the entire data object containing all technical specifications, descriptions, and metadata for every lot.
• Filtering & Notification: If the enableNotification flag is active, it compares the current price with maxPrice and the remaining time with minituesToEnd. If your criteria match it wille send a notification mail with matching object. Don't miss out on a bargain!
• Storage: Saves all extracted data into the Apify dataset for all objects.

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Input Parameters

Parameter	Type	Description	Example
url	String	Full Catawiki URL with applied filters.	https://www.catawiki.com/en/c/333-watches?filters=...
maxItems	Integer	Maximum number of objects to scan and save in the dataset.	50
maxPrice	Integer	Maximum acceptable price to consider a lot an "opportunity".	250
minituesToEnd	Integer	Minutes remaining until the auction ends to trigger a notification.	15
sendMailTo	String	Email address for receiving the report.	user@example.com
enableNotification	Boolean	If active, calculates opportunities and sends the email. If inactive, performs scraping only.	true

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Extracted Data (Scraping)

The Actor saves all information returned by the Catawiki server for each lot into the dataset, including:

• Identifiers: Lot ID and full title.
• Auction Details: Current price (bid), minimum bid, start time, and end time.
• Media: Image URLs (thumbImageUrl) and direct links.
• Application Logic: The shouldBuy flag indicating if the lot passed the set filters.
• System State: The enableNotification parameter used during the run.

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Technical Notes

• Anti-Ban: Uses proxies and random delays between requests to simulate human behavior.
• Dataset: Even if notifications are disabled, the Actor functions as a full scraper, populating the dataset with all discovered lots.

Scraper Output:

[
  {
    "id": 102191342,
    "title": "Omega - De Ville - No reserve price - Women - 1980-1989 ",
    "subtitle": "Quartz - Gold-plated, Steel",
    "thumbImageUrl": "https://assets.catawiki.nl/assets/2026/3/11/d/3/9/thumb2_d394a20f-1740-4242-972e-0d9f26d6499b.jpg",
    "originalImageUrl": "https://assets.catawiki.nl/assets/2026/3/11/d/3/9/d394a20f-1740-4242-972e-0d9f26d6499b.jpg",
    "favoriteCount": 0,
    "url": "https://www.catawiki.com/en/l/102191342-omega-de-ville-no-reserve-price-women-1980-1989",
    "localized": true,
    "translatedTitle": null,
    "translatedSubtitle": null,
    "auctionId": 1206960,
    "pubnubChannel": "CWAUCTION-production-1206960",
    "useRealtimeMessageFallback": false,
    "use_realtime_message_fallback": false,
    "isContentExplicit": false,
    "reservePriceSet": false,
    "biddingStartTime": "2026-03-13T11:00:00+00:00",
    "bidding_start_time": "2026-03-13T11:00:00+00:00",
    "buyNow": null,
    "hasFreeShipping": null,
    "isVectorSearchResult": false,
    "description": null,
    "sellerId": null,
    "sellerShopName": null,
    "live": {
      "id": 102191342,
      "reservePriceMet": null,
      "bid": {
        "EUR": 280,
        "USD": 324,
        "GBP": 242
      },
      "biddingEndTime": 1773859440000,
      "biddingStartTime": 1773399600000,
      "highestBidderToken": "597c6ca3c47cd0a89066c0df996f9aedbd040adc",
      "favoriteCount": 71,
      "winnerToken": null,
      "closeStatus": "Open",
      "isBuyNowAvailable": false
    },
    "biddingEndTime": "2026-03-18T18:44:00.000Z",
    "shouldBuy": true,
    "bidding_start_time_original": "2026-03-13T11:00:00+00:00",
    "enableNotification": true
  },
  {
    "id": 102191456,
    "title": "Omega - De Ville - No reserve price - Men - 1980-1989 ",
    "subtitle": "Quartz - Gold-plated, Steel",
    "thumbImageUrl": "https://assets.catawiki.nl/assets/2026/3/11/8/f/4/thumb2_8f445859-dc3b-4ee3-9872-1d0f9c4e54c8.jpg",
    "originalImageUrl": "https://assets.catawiki.nl/assets/2026/3/11/8/f/4/8f445859-dc3b-4ee3-9872-1d0f9c4e54c8.jpg",
    "favoriteCount": 0,
    "url": "https://www.catawiki.com/en/l/102191456-omega-de-ville-no-reserve-price-men-1980-1989",
    "localized": true,
    "translatedTitle": null,
    "translatedSubtitle": null,
    "auctionId": 1196954,
    "pubnubChannel": "CWAUCTION-production-1196954",
    "useRealtimeMessageFallback": false,
    "use_realtime_message_fallback": false,
    "isContentExplicit": false,
    "reservePriceSet": false,
    "biddingStartTime": "2026-03-13T11:00:00+00:00",
    "bidding_start_time": "2026-03-13T11:00:00+00:00",
    "buyNow": null,
    "hasFreeShipping": null,
    "isVectorSearchResult": false,
    "description": null,
    "sellerId": null,
    "sellerShopName": null,
    "live": {
      "id": 102191456,
      "reservePriceMet": null,
      "bid": {
        "EUR": 260,
        "USD": 301,
        "GBP": 225
      },
      "biddingEndTime": 1774207340000,
      "biddingStartTime": 1773399600000,
      "highestBidderToken": "605cce624961d8130448766005c457f04151c0be",
      "favoriteCount": 44,
      "winnerToken": null,
      "closeStatus": "Open",
      "isBuyNowAvailable": false
    },
    "biddingEndTime": "2026-03-22T19:22:20.000Z",
    "shouldBuy": false,
    "bidding_start_time_original": "2026-03-13T11:00:00+00:00",
    "enableNotification": true
  }
]